There isn't a cheat to unlock BMW M3 GTR.You can only get this car by defeating Razor ( Blacklist # 1 )
There are no known cheats for this particular part of the game.
if you have a ps2 or a xbox then no but if you have a PC then yes you can by either hex editing or moddng
how do you unlock the trunk of a 740il BMW with keys locked inside
no
there is no BMW in san Andreas (without mod)
With the key? :) What do you mean?
You unlock it when you reach League 4
with a brick
modify it.
use key to manually unlock. manual unlock will not work.
There are no BMW's in San andreas, the closest car to a BMW in any GTA game is A Sentinel. But theres no cheats for that car.